Contec SEH-9450-LAS Manual De Usuario
3. Hardware Installations
14
SEH-9450-LAS
Serial Port Connector: COM1 / COM2
Serial 1 (COM1), Serial 2 (COM2), are onboard serial ports of the product. The following table shows
the pin assignments of these connectors.
the pin assignments of these connectors.
Table 3.4.
Serial Port Connector
PIN No.
RS-232C
RS-422
RS-485
1 DCD TX- TX-
2 RXD TX+ TX+
3 TXD RX+ RX+
4 DTR RX- RX-
5 GND GND GND
6 DSR N.C. N.C.
7 RTS N.C. N.C.
8 CTS N.C.
2 RXD TX+ TX+
3 TXD RX+ RX+
4 DTR RX- RX-
5 GND GND GND
6 DSR N.C. N.C.
7 RTS N.C. N.C.
8 CTS N.C.
N.C.
9 RI N.C.
N.C.
COM1 / COM2
1
6
5
9
10 N.C. N.C. N.C.
CAUTION
-
For RS-485, TX+(pin 2) and RX+ (pin 3) must jumper together inside the D type connector.
-
TX- (pin 1) and RX- (pin 4) is the same.
RS-422 / RS-485 specifications
-
Transmission system: Asynchronous, half-/full-duplex serial transmission conforming to
RS-422/RS-485
RS-422/RS-485
-
Baud rate : 115,200 - 50bps (programmable)
-
Signal extensible distance: 1.2km Max.
RTS#
R
D
1ΚΩ
JCOM1: 14-6
JCOM1: 15-6
SOUTB
6.2ΚΩ
6.2ΚΩ
4.7KΩ
4.7KΩ 4.7KΩ
4.7KΩ 4.7KΩ
4.7KΩ
10 5
6 1
Figure 3.1.
RS-422 / RS-485